Yarn winding machine



Sept. 9, 1952 Filed March 7, 1946 D. R. EASTWOOD YARN WINDING MACHINE 8 Sheet-Sheet 1 INVENTOR.

D. R. EASTWOOD ATTORNEYS Sept. 9, 1952 Filed March 7, 1946 D. R. EASTWOOD YARN WINDING MACHINE 8 Sheets-Sheet 2 INVENTOR.

' 11R. EASTWOOD.

ATTORNEYS.

P 1952 D. R. EASTWOOD 2,609,997

YARN WINDING MACHINE INVENTOR.

J. R. EASTWOODv 4 ATTORNEYS P 1952 D. R. EASTWOOD 2,609,997

YARN WINDING MACHINE Filed March 7, 1946 8 Sheets-$heet 4 INVENTOR.

D. R. EASTWOOD.

WIW

ATTORNEYS Sept. 9, 1952 D. R. EASTWOOD YARN WINDING MACHINE 8 Sheets-Sheet 6 Filed March 7, 1946 mmvrox D.R. EASTWGOD.

ATTORNEYS p 1952 D. R. EASTWOOD YARN WINDING MACHINE 8 Sheets-Sheet 7 Filed March 7, 1946 38 MOTOR? a: sill-E25;

INVENTOR.

D. R. EASTWOOD,

XWWM ATTORNEYS Sept. 9, 1952 I h 7 D. R. EASTWOOD 2,609,997

' YARN WINDING MACHINE Filed March 7, 1946 8 Sheets-Sheet 8 TlgtiS INVENTIOR.

D .R. EASTWOOD.

ATTORNEYS Patented Sept. 9, 1952 YARN WINDING MACHINE Donald Ross Eastwood, Drummondville, Quebec, Canada, assignor to Celanese Corporation of America, a corporation of Delaware Application March 7, 1946, Serial No. 652,549

This invention relates to yarn winding machines, and relates more particularly to yarn winding machines wherein pirns, cops, quills, spools or like packages of yarn (hereinafter referred to in the interest of brevity as pirns) are automatically removed from the machine upon completion of the winding and replaced by fresh package supports on which the windingof new packages continues.

An object of this invention is to provide improved means for releasing and removing wound pirns from the winding mechanism and for placing an emptypirn tube in position to have yarn Wound thereon.

Another object of this invention is to provide automatic means for trapping the portion of the yarn extending from the supply to the wound pirn, for initiating'the winding of the yarn on the fresh pirn tube, and for severing the yarn description and claims.

In one aspect, this invention comprises the modification of a well-known pirn winding machine manufactured by the Universal Winding Machine Companyof Boston, Massachusetts, and designated by, this company No. 90 Winding Machine. tomake the pirm changing, i. e. the doffing and donning of pirns, completely automatic without, however, preventing the starting and stopping of any individual spindle manually.' Such machines are usually provided with twenty spindles, two sets or banks of ten spindles each bein positioned back-to-back on a suitable bench and framework. For the greater operating efficiency of this invention, two pirn winding machines are joined in endwise relationship and the two banks of ten spindles on the same side of the machines are operatively connected so that twenty pirns are simultaneously wound, doffed means.

This invention comprises, broadly, means, in

association with each spindle of the above winding machine arrangement, for releasing and removing the wound pirn from the winding spindle,

9 Claims. (Cl. 242-32) after the stoppage of the winding, so that it may fall into a suitable receiver, a carriage adapted to deliver a fresh pirn tube to a position in line with the end of the spindle where it may be removed from the carriage by a novel means for supporting the pirn tube during winding. In this latter operation the yarn, still connected to the wound pirn and which had been brought to a position adjacent to the spindle base, is trapped between the flange of the fresh pirn tube and the spindle base. A severing member then cuts theyarn at a point near the spindle and the wound pirn is then released from the receiver and falls into a suitable storage receptacle.

The fresh pirn tubes may be supplied to the carriage from a magazine capable of holding a plurality of tubes, the carriage conveniently cooperating with the magazine in a manner such that a fresh pirn tube is released from the magazine and supplied to the carriage for transference to the spindle replenishing position on completion of the winding of a pirn.

A feature of this invention resides in means for moving the length of yarn extending from the traverse guide to the wound pirn and carrying it to a position where it may effect engagement with the fresh pirn tube and the bunching mechanism of the winding machine. Thus, the yarn moving member is mounted on the mechanism for pushing the traverse mechanism to its starting position, the yarn at that point is trapped not only between the flange of the fresh pirn tube and spindle base but also by a hook on the bunch builder bar, and furthermore is centered between the blades of a cutting device.

- All of the spindles on the same side of the winding machines may be served simultaneously by the automatic pirn changing mechanism of this invention, the various movements of the pirns being effected in synchronism in association with each spindle and operated by a master spindle which controls the other spindles in the operating unit by starting the dofling mechanism when it has been filled to predetermined size. Thus, a control switch operated by the master spindle unit, upon the stoppage of the rotation of the spindle, closes a motor circuit, the motor then operating the elements which synchronously effect the dofling and donning operations and the restarting of the winding operation. Means may be provided to render the control switch inoperative, but this will not prevent the individual spindles from operating and stopping when their respective pirns have been completely filled. In other words, with the control switch rendered inoperative the winding machine operates as if the machine was not modified in accordance with this invention.

In the event of jamming of the pirn changing mechanisms, protection is provided in the form of an overload device that automatically shuts down the operating mechanism and may light a lamp to warn the operative. Means are provided for manually removing the cause of jamming or overloading.

The invention will now be described in greater detail with reference to the accompanying drawings wherein for the sake'of simplicity there is shown little more than one pirn winding unit, specifically the control winding unit governing the pirn changing movements of the twenty winding units in horizontal alignment on the same side of two adjacent pirn winding machines.

In the drawings:

Fig. 1 is an end View of a pirn winding machine modified in accordance with this invention,

Fig. 2 is a perspective view on an enlarged scale of a portion of the winding machine with parts broken away and omitted to show details in greater clarity,

Fig. 3 is a cross-sectional view of the drum cam operating mechanism,

Fig. 4 is a cross-sectional view of overload arrangement, Fig. 5 is a cross-sectional view of the drum cam arrangement,

Fig. 6 is a front elevational View of a portion of the winding machine, with certain parts omitted, showing certain details of the pirn changing mechanism on an enlarged scale.

Fig. 7 is a detail View of the bunching rod operating cam and lever,

Fig. 8 is a top plan view, on an enlarged scale, of a portion of the pirn changing mechanism, showing scissors operating and bunching details,

Fig. 9 is a detail view of means for motor stop switch,

Fig. 10 is a sectional view taken on line li-Hl in Fig. 9,

Fig. 11 is a wiring diagram of the pirn changing mechanism, 7

Fig. 12 is a detail View of the pirn releasing mechanism and hopper,

Fig. 13 is a side elevational view of the hopper, showing the storage receptacle for receiving wound pirns, and

Fig. 14 is a cross-sectional detail view of the magazine.

Like reference numerals indicate like parts throughout the several views of the drawings.

Referring now to the drawings and particu larly to Fig. 1 thereof, the reference numeral If! indicates a drive shaft driven by a suitable means, as by a motor or overhead drive, on which is fixed a pulley H, the pulley being covered by a guard 12. Pulley II is connected by a belt l3 to an'active pulley l4 which drives the input shaft l5 of the gainer case I6 which comprises a gear and clutch arrangement for rotating the spindles I! of the pirn winding machine. Handles I3 are provided to operate rod IQ for shifting the belt I3 from the active pulley M to the idler pulley, not shown but located beside it on shaft 15, to halt the rotating of the spindles I! or from the idler pulley to the active pulley M to start the rotation of the spindles. The framework of the winding machine, generally indicated by reference numeral 20, carries a platform 21 for supporting supply bobbins 22 and superstructure 23 for supporting gate tension devices 24, through brackets 25, and compensators 28. All of the foregoing elements, with the operating exception of the specific spindle structure as '4 will appear below, are standard equipment on pirn winding machines of the type being modified. It is to be understood, however, that pirn winding machines of a type other than the one herein employed may be modified in accordance with this invention.

The traversing mechanism, generally indicated by reference numeral 21, is also of the wellknown type and includes substantially all of the elements normally associated therewith. Accordingly, the several elements of the traversing mechanism will not be described except where they are modified or perform a particular function in accordance with this invention.

As is shown in Fig. 2 of the drawings, the spindle I1 employed in accordance with this invention difiers from the spindle normally employed in that it has been reduced in length to approximately and has a tip 28 projecting about through a rubber washer 29. The rubber washer serves as a friction drive for the pirn tube 3|, pressure being applied to the tip of the pirn tube by a ball-bearing guide 32, hereinafter more fully described.

During the winding of the pirn the traversing device guides the winding of the yarn onto the pirn in the usual manner, moving its field of traverse gradually from the base of the pirn tube to the tip thereof to complete the winding of the pirn. The rotation of the spindle is then halted, also in the usual manner as by a finger on the traversing mechanism tripping the sizing lever which normally holds the starting lever 33 in operative position, i. e. the position held during the winding operation. Thereupon the ejecting, replenishing and restarting mechanism of this invention function as follows:

The rotation of the starting lever 33 to inoperative position causes a switch finger 34 fixed thereto to operate control switch 35. The latter elements are mounted on the spindle designated as the master spindle which in the drawings is at the left of the cam unit and operating mechanism, both generally indicated by reference numeral 36, mounted between, and at one side of, two pirn winding machines and. arranged to control the pirn changing operations of twenty spindles, i. e. ten spindles on each machine. The master spindle controls the other nineteen spinles, when it has been filled with yarn to the predetermined size. vA similar master spindle controls a similar number of spindles on the opposite side of the winding machines.

The control switch 35 upon being actuated by switch finger i4 energizes relay 35' which starts dofiing motor 38 and at the same time turns on a white pilot light 3%) to indicate to the operator that the pirn winding machine has begun the dofiing operation. Referring to Figures 3, 4, 5 and 6 it will be seen that the shaft 4| of motor 33 is connected through a rubber coupling 42 to a shaft G3 on which is fixed for rotation therewith, the driving half of a jaw clutch 4 3. A worm wheel 56. one end of which forms the other half of jaw clutch G5, is assembled on shaft 43 and normally rotates with it. The worm wheel 46 meshes with and rotates a gear 4? mounted on shaft 48 and is coupled to vertical shaft clutch body 41' by means of pin it. Clutch body 41' is "red to shaft 48 by means of pin 58' and thus causes the rotation of vertical shaft 48. A worm wheel 49 is mounted near the lower end of vertical shaft 38 and is adapted to mesh with and rotate a gear 5! fixed to a shaft 52 by means of a key 53. Shaft 52 has suitably mounted thereon a drum cam 54 having grooves well as plate cams 51 and 58.

Means are provided to prevent damage to the operating mechanism in the event of jamming which might be caused by a crooked pirn or some other abnormal condition. Thus, the thrust of worm wheel 46 is taken by a trip collar 59 held in position by a compression spring GI and carried on the shaft 43. The spring BI is in turn held in position by nut 62 and locknut 63 adjustably mounted on a threaded projection 64 integral with end bearing 65. In case of an overload, tending to prevent the rotation of gear 41, worm wheel 46 will move to the left on shaft 43 disengaging clutch 44 and compressing spring 6|, effecting movement of trip collar 59 which opens limit switch 66, shutting down the motor, extinguishing white light 39 and lighting red pilot 51 (see Figure 11). In order to remove the cause of the overload, a cover 68 is removed and a suitable crank is placed over the upper end 48" of shaft 48, the crank being so constructed that it looks in position on projecting pin 48' and depresses pin 69 against the action of compression spring H. Pin 69 depresses pin I2 against the action of expansible spring I3 thus disconnecting the driving mechanism (see Fig. 3). The crank is then operated to move the drum cam 54 in one direction or the other to release the jam. After the cause of the overload is removed, the limit switch 66 must be reset manually, after which the pirn winding machine and pirn changing means operate to complete the cycle which was interrupted by the jamming.

While the pirn tubes 3| are being filled, the drum cam 54 is at rest. When pirn tube on the master spindle is filled to its predetermined size, the sizing lever, as stated above, is tripped in the usual manner and causes switch finger 34 on starting lever 33 to operate control switch 35 to energize relay 35', starting the doifing motor 38 and to turn on the white pilot light 39. The doffing motor, through the various elements described above, rotates the drum cam 54. As the drum rotates, it moves rods I4, "I5 and I6 towards the left by means of cam follower roller 11 journalled on a fixed collar 18 carried by all three rods, the cam follower rollers operating in cam grooves 55 and 56. (See Figures 3 and 5.) The first rotational movement of drum cam causes rod I6 and bar I9 attached thereto to move to the left. This movement causes a curved latching arm 8| pivotally mounted at 82 on bar I9 and at 83 On a bracket 84 fixed to the framework of the winding machine, to rotate in a clockwise direction, whereby a wire 85 carried in a boss 86 integral with latching arm 8| lifts the stopping lever 81 of the spindle. The mechanism is preferably adjusted so that the spindles are stopped when the drum cam has moved about 20 degrees.

The rotation of shaft 52 of the drum cam 54 also rotates plate cams 51 and 58. When the pirn tubes are filling, the plate cams, as well as the drum cam, are at rest and in this position plate cam 58 holds open a normally closed motor switch 88 which is connected in parallel with the normally closed switch 35 on the master spindle unit. When the shaft 52 has rotated about 20 degrees, or substantially at the point Where the rotation of the spindles is stopped, a finger 89 carried by the plate cam 58 permits switch 88 to close to maintain the motor circuit. Also at this point, each plate cam lifts a lever 9| fixed at one end to a rocker shaft 92, the other end being free and having attached thereto a spring 93 55 and 56, as

which acts to maintain a roller cam follower 94, carried by lever 9|, in contact with the periphery of the plate cam. The lifting of the lever 9| rocks shaft 92 and the pirn guides 32 carried by guide arms 95, which guide arms are mounted on rocker shaft 92. Springs 96 carried by rocker shaft cooperates with a boss 91 on the guide arm for maintaining the guide in contact with the pirn tip. This arrangement also permits individual pirn guides 32 to be pulled away'from the pirn tip, allowing the pirn to drop free thereof, as when it is desired to re-thread an individual unit while the balance of the machine is operating. When the shaft 52 has rotated about 45 degrees, the lever 9I has moved the guides 32, through rocker shaft 92 and guides arms 95, far enough away from the pirn tip to permit the filler pirn to drop into a hopper 98 located directly below the same. The hopper 98 will be more fully described below.

The finger 89 employed for holding open normally closed switch 88 is adjustably carried in a slot 99 in the face of the plate cam 58 and is held in adjusted position by locknuts IOI.

As the drum cam 54 continues to rotate, rod I4 is caused to move to the left :by the drum cam. Rod 14 carries at one end a rack I02 which engages and rotates a pinion gear I03, see Figure 2. The pinion gear I03 is carried at the lower end of an inclined shaft I04, the upper end of which has attached thereto a bevel gear I05 in a housing I06. The bevel gear I05 meshes with and is adapted to rotate bevel gear I08, also enclosed in housing I06. Rotation of bevel gear I08 operates traverse pinion shaft I09 which extends to the left for servicing one group of ten spindles of one winding machine and which also extends to the right for servicing the ten spindles on the other winding machine. At suitably spaced points, the traverse pinion. shaft has fixed thereto pinion gears II2 each adapted to engage a rack I I3 mounted in a split tube I I4. An arm II5 attached to rack II3 carries a bracket H6 in which is mounted an adjustable finger I I I which engages lever II 8 fixed to the traverse mechanism 21, thus disengaging said traverse mechanism from the half-threaded rod H9 and carrying the traverse mechanism to its starting position. A wire I2I attached to arm II5 engages the uncut thread between the traverse yarn guide and the wound pirn and carries it to a point directly in front of the washer 23 on the spindle. The drum cam 54 has now r0 tated about degrees.

In the meantime, rod I5 has started to move to the left (Figure 2) by drumcam 54 when the drum cam had rotated about 95 degrees. Rod I5 has attached thereto a carriage I22 having a platform I23 and two bent wire fingers I24 fixed to said platform. A bracket I25 is attached to the carriage, the bracket being bifurcated at its lower end I26 so that it may straddle and be supported by rocker shaft 92. The bent wire fingers I24 hold the empty pirn tube 3| which the carriage is carrying to the position where it may be picked oil the same by the spindle I1 and guide 32. This point is reached when the drum 54 has rotated about 185 degrees. A wire I21 which is fixed to carriage I22 not only functions to guide the uncut yarn past the carriage but also to hold the uncut yarn at the spindle when arm II5 returns to its starting position. Arm I I5 starts back when the drum cam 54 has rotated about degrees at which point rod I4 has been moved to the right by drum cam 7. li ireversing the previous direction of rotation of pinion gear Ills; The arm H returns to its starting position when the drum cam 54 has rotated about 240 degrees, and remains at this position during the remainder of the cycle.

With the empty pirn tube in position to be picked up by the spindle and guide, plate cams 57 and 58 (and also the drum cam) have rotated about 168 degrees, permitting levers 9i to lower, thus rotating rocker shafts 92, by means of the pull of springs es, and rocking guide arms st to their original position. This causes guide 5-32 to push the pirn tube against the spindle head, trapping the yarn between the flange of the pirn tube and the rubber washer 28 on the spindle head.

When the drum cam 5 has rotated about 160 degrees, rod I6 starts to move to the right and performs a plurality of functions. Thus, rod it moves to the right bar it attached thereto. This bar it carries a boss I 23 having a pin I29 on which is pivoted a lever [3i having a bifurcated I end. The upper end of the lever is pivoted at I32 and is provided with a finger I3 3 mounted in a connecting member It's fixed to a bar I35. Movement of bar I 35 to the right operates the pivot blade I35 of a scissor so that it cooperates with stationary blade I37 thereof to cut the yarn therebetween, see Figure 8, the cutting being effected some time before the drum cam rotates through 260 degrees.

Another function performed by rod 76 is to set automatically the bunching mechanism, which bunching mechanism is standard equipment on the Universal winding machine. Referring to Figures 2, 6, 7 and 8, the bar "it, attached to rod "It, has mounted thereon a platform [38 carrying a cam use. As the rod '16 is movedto the right moving with it bar It, the cam I39 causes the arm i i! of bell crank lever, generally indicated by reference numeral N52, to be raised thus moving arm MS of the bell crank lever in a counterclockwise direction. Arm M3 engages a projection M4 on a bar E moving the same to the left. Hooks hit on bar I45 en age the yarn, carrying it out of the yarn guide on the traversing means to permit bunching. The bar is after it is moved toward the leftis held there for a time determined by the setting of the timing mechanism of the standard bunch builder. The roller It? at the free end of the arm MI in the meantime has travelled to the end of the high point Hit of cam iB-t, has fallen off to permit arms It! and M3 to return to their original positions in front oi the cam 39. The roller Ml is pivotally carriedon a spring clip I49 fixed to arm ItlI. Means are provided to limit the clockwise movement of arm its, comprising a bracket IEI suitably mounted on the framework and carrying an adjustable screw I52.

A third function performed by the movement to the right of rod I5 and bar Iii is to start the spindles. Thus, movement of the rod and bar causes the free end of latching arm 8! to move in a counter-clockwise direction, engaging projection 83 on sleeve 83 mounted onpin 83, to cause the clutches in the gear box to start the rotationof the spindles. This starting of the spindles is effected at about the same time as the bunch builder is put in operation, 1. e. before the drum cam 54 has been rotated through 260 degrees.

The bar Is also iunctions'to open the hopper 98, which is substantially triangular in vertical cross-section and has a door I53 normally held closed by a spring I54. To this end the bar 79 carries a series of arms I55 depending therefrom. Arm I55 is adapted to'engage a pin I56 attached to door I53, opening the same to permit the filled pirn to fall into a suitable storage re ceptacle I'5'I located below the hopper. The hopper 98 may be supported in position in any suitable manner as on a rod I 58. V

The carriage I22 which brought up the empty pirn tube remains in its forward position while the drum cam rotates from the. degree point of rotation to about the 228 degree point by virtue of lost motion in the mechanism, permitting the pirn tube 3! to be lifted from the bent wire fingers I24 by the spindle and guide. It is then returned toits starting position by the drum cam causing rod l5'to move backwards, or to the right, where it is directly under a chute I59 of a magazine I55 arranged to hold ten pirn tubes.

The magazine housing IE8 is carried on bracket E63 by ears I GI (only one of which is shown) suitably attached to the housing and having pins for insertion in holes provided in bracket I 5!. A rotor I 52, having fins I63 dividing the magazine into a series of compartments each adapted to receive a pirn tube, and a ratchet wheel IE4, is mounted on pin I6I in bracket IEI. A lever I36 is also pivotedon pin ifii' with its upper end pivoted on bar IE5. As rod I58, connected to carriage I22, moves to the left, carrying the empty pirn tube to the threading position in front of spindle I'I, bar I 55 is moved to the right, by lever Hi5 movable by rod I58, causing lever Hit, by means or pawl It'I attached thereto, to move ratchet Wheel I64, thus indexing the rotor I62 one point. This permits one empty pirn tube to drop into chute I59, thence to platform I23 of the carriage. As the carriage I22 returns to its starting position, the pirn tube is rolled off onto the wire fingers I24 in readiness for the next cycle.

The latching, bunching and scissors rod "It returns to its starting point when the drum cam 5d has rotated through 350 degrees, opening the scissor blade I36 and moving latching arm BI to its neutral position in preparation for the next cycle.

As described above, the bunching bar M5 is held in the bunching position by the standard automatic bunch building mechanism. *ter the bunch builder has tripped, following a predetermined number of strokes of the traverse mechanism 27 of the spindle unit, the bar M5 is permitted to return to its normal position, allowing the yarn to enter the yarn guide on the traverse mechanism, the winding then proceeding in the same manner as on the standard winding machine.

As the master spindle starts, the motor starting switch 35 opens but, as stated above, the circuit is maintained by switch 38 operated by plate cam 58 through finger 83 carried thereby. At the completion of the cycle, finger 89 opens switch 88, stopping the motor 38. A third pilot light I68, green, is provided to indicate when main control switch I69 is open.

With the exception of the master spindle, any spindle may be stopped and restarted, at any time during the winding operation, in the same manner as with pirn winders wherein the pirn changing is manually effected; If it is desired to stop the master spindle, main control switch IcQ must first be opened, as otherwise the winding machine would start to doff as soon asthe spindle was tripped. Where a pirn is filled before the pirn on the master, spindle, the spindle is tripped as .usual in manually operated pirn winders, but the doflingthereof is delayed until the master spindle is tripped.

It is also possible in the pirn winding machine of this invention to start the windingof pirns at any time during, the winding operation and usual manual means, such as a handle attached to either end of bar I45, areprovided to reset the bunch builder. However, such pirns will not be completely filled when dofiing occurs, due to the late start. M

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention. V

Having described my invention, what I desire to secure by Letters Patent is:

1. A machine for winding yarn tubes comprising, in combination with a spindle for rotating a pirn tube and means for guiding the pirn tube into engagement with said spindle, a trav ersing mechanism movable lengthwise of the pirn tube until the winding of the yarn thereon is completed, and means for automatically stopping the rotation of said spindle when the winding of the yarn on the pirn tube is completed, means for automatically replacing a wound pirn by an empty pirn tube upon which the Winding of a new pirn continues, said latter means includi a rocker shaft for supporting said pirn tube guiding means, a lever connected to said rocker shaft, means for actuating said lever to move said rocker shaft to effect a withdrawal of said pirn tube guiding means permitting the wound tube to fall away from said traversing mechanism, tube guiding means and spindle, means for moving said traversing mechanism moving means to move to said spindle the length of yarn extending from the supply to the wound pirn, a carriage and a drum cam operatively connected to said carriage for reciprocating the same to move a fresh pirn tube in line with said pirn tube guiding means and said spindle, a magazine for supplying a fresh pirn tube to said carriage at the starting position thereof, said magazine including a rotor having fins for dividing said magazine into compartments each adapted to hold a single fresh pirn, means for turning said rotor for discharging a fresh pirn from one of said compartments on to said carriage, and means for restarting the winding operation.

2. A machine for winding yarn tubes comprising, in combination with a spindle for rotating a pirn tube and means for guiding the pirn tube into engagement with said spindle, a traversing mechanism movable lengthwise of the pirn tube until the winding of the .yarn thereon is completed, and means for automatically stopping the rotation of said spindle when the winding of the yarn on the pirn tube is completed, means for automatically replacing a wound pirn by an empty pirn tube upon which the winding of a new pirn continues, said latter means including a rocker shaft for supportingsaid pirn tube guiding means, a lever connected to said rocker shaft, means for actuating, said lever to move said said, traversing mechanism moving mean to move said spindle the lengthof yarn extending from the supply to thewound, pirn, a carriage and a drum cam operatively connected to said carriage for reciprocating the same to move a fresh pirn tube in lin with said pirn tube guiding means and said spindle, a magazine for supplying a fresh pirn tube to said carriage at the starting position thereof, said magazine including a rotor having fins for dividing said magazine into compartments each adapted to hold a single fresh pirn, means for, turning said rotor for discharging a fresh pirn from. one of said compartments on to said carriage, and means for re- 5 starting the winding operation.

zontally reciprocable carriage, means operatively connected to'said carriage for reciprocating the same to move a fresh pirn tube in line with said pirn tube guiding means and said spindle, a magazine for supplying a fresh pirn tube to said carriage at the starting position thereof, said magazine including a rotor having fins for dividing said magazine intocompartments each adapted to hold a single fresh pirn, means for turning said rotor for discharging a fresh pirn from one of said compartments on to said carriage, and means forrestarting the winding operation.

4. A machine for winding yarn on pirn tubes comprising, in combination with a plurality of spindles for rotating pirn tubes, means for driving said spindles and means for guiding the pirn tubes into engagement with said spindles, traversing mechanisms movable lengthwise of each rocker shaft to effect a withdrawal of said pirn of the pirn tubes until the winding of the yarn thereon is completed, means including a starting handle operatively connected to spindle drive means for independently stopping the rotation of each of said spindles when the winding of the yarn on the pirn tube in engagement with said spindle is completed, means for automatically stopping the rotation of all of said spindles only when the winding of the yarn on a predetermined one of said pirn tubes is completed, means for automatically replacin the wound pirns by empty pirn tubes upon which the winding of new pirns continues, and means for restarting the winding operation.

5. A machine for winding yarn on pirn tubes comprising, in combination with a plurality of spindles for rotating pirn tubes, means for driving said spindles and means for guiding th pirn tubes into engagement with said spindles, traversing mechanisms movable lengthwise of each of the pirn tubes until the winding of the yarn thereon is completed, means including a starting handle operatively connected to. spindlefdrive meansfor independently stopping the rotation of each of said spindles when the winding of the yarn on the pirn tube in engagement with said spindle is completed, means for automatically stopping the rotation of all of said spindles only when the winding of the yarn on apredeter- 

